NOTICE
During emergency mode operation, all stop commands to the frequency converter are ignored, including coast/coast
inverse and external interlock. However, if Safe Torque Off is available in the frequency converter, this function is still
active.
NOTICE
If using the live zero function in emergency mode, then it is also active for analog inputs other than that used for
emergency mode setpoint/feedback. Should the feedback to any of those other analog inputs be lost, for example a
cable is burned, live zero function operates. If this is not wanted, disable the live zero function for those other inputs.
Set the wanted live zero function if there is a missing signal when emergency mode is active in
parameter 6-02 Emergency Mode Live Zero Timeout Function
Warning for live zero has a higher priority than the warning
Emergency Mode
.
NOTICE
If setting the command
[11] Start Reversing
on a digital input terminal in
parameter 5-10 Terminal 18 Digital Input
, the
frequency converter interprets this as a reversing command.
24-00 Emergency Mode Function
Option:
Function:
NOTICE
In the above, alarms are produced or
ignored in accordance with the selection
in
parameter 24-09 Emergency Mode
.
[0]
*
Disabled
Emergency mode function is not active.
[1]
Enabled-
Run
Forward
In this mode, the motor continues to operate
in a clockwise direction. Works only in open
loop. Set
parameter 24-01 Emergency Mode
to
[0] Open Loop
.
[2]
Enabled-
Run
Reverse
In this mode, the motor continues to operate
in a counterclockwise direction. Works only in
open loop. Set
to
[0] Open Loop
.
[3]
Enabled-
Coast
In this mode, the output is disabled and the
motor is allowed to coast to stop.
[4]
Enabled-
Run
Fwd/Rev
24-01 Emergency Mode Configuration
Option:
Function:
NOTICE
Before adjusting the PID controller, set
parameter 24-09 Emergency Mode Alarm
Handling
[2] Trip, All Alarms/Test
.
24-01 Emergency Mode Configuration
Option:
Function:
NOTICE
If
[2] Enable-Run Reverse
is selected in
parameter 24-00 Emergency Mode Function
[3] Closed Loop
cannot be selected in
parameter 24-01 Emergency Mode Configu-
ration
[0]
*
Open
Loop
When emergency mode is active, the motor runs
with a fixed speed based on a reference set. The
unit is the same as selected in
parameter 0-02 Motor Speed Unit
[3] Closed
Loop
When emergency mode is active, the built-in PID
controller controls the speed based on the setpoint
and a feedback signal selected in
parameter 24-07 Emergency Mode Feedback Source
Select the unit in
parameter 24-02 Emergency Mode
. For other PID controller settings, use
parameter group
20-** FC Closed Loop
as for normal
operation. If the motor also is controlled by the
built-in PID controller when in normal operation,
the same transmitter can be used for both cases by
selecting the same source.
24-02 Emergency Mode Unit
Option:
Function:
Select the unit when emergency mode is active
and running in closed loop.
[0]
[1]
%
[2]
RPM
[3]
Hz
[4]
Nm
[5]
PPM
[10]
1/min
Parameter Description
Programming Guide
MG20OB02
Danfoss A/S © 05/2018 All rights reserved.
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Содержание VLT AQUA Drive FC 202
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